TY - JOUR
T1 - Normative Symbol Digit Modalities Test performance in a community-based sample
AU - Sheridan, Laura K.
AU - Fitzgerald, Hiram E.
AU - Adams, Kenneth M.
AU - Nigg, Joel T.
AU - Martel, Michelle M.
AU - Puttler, Leon I.
AU - Wong, Maria M.
AU - Zucker, Robert A.
N1 - Funding Information:
This research was supported by National Institute on Alcohol Abuse and Alcoholism grants R01 AA12217, R37 AA07065, and T32 AA07477 to R.A. Zucker, J.T. Nigg, and H.E. Fitzgerald.
PY - 2006/1
Y1 - 2006/1
N2 - The Symbol Digit Modalities Test [SDMT; Smith, A. (1982). Symbol Digit Modalities Test. Los Angeles: Western Psychological Services; Smith, A. (1968). The symbol-digit modalities test: a neuropsychologic test of learning and other cerebral disorders. In J. Helmuth (Ed.), Learning disorders (pp. 83-91). Seattle: Special Child Publications] is a substitution task that is the inverse of the Digit Symbol Test [Wechsler, D. (1955). Manual for the Wechsler Adult Intelligence Scale (WAIS). New York: The Psychological Corporation]. The familiar task of filling numbers in boxes, and the availability of an oral administration, make this a popular screening instrument for brain impairment. Normative data were previously reported for a variety of clinical groups, but complete information on non-clinical samples across age, education, gender, and socioeconomic status is limited. The present study examines the performance of a community-dwelling control sample across age, education, gender, and income groupings. In a multivariate model, these four variables did not impact test performance. These results support the utilization of the SDMT as a robust screening test for adult neuropsychological impairment.
AB - The Symbol Digit Modalities Test [SDMT; Smith, A. (1982). Symbol Digit Modalities Test. Los Angeles: Western Psychological Services; Smith, A. (1968). The symbol-digit modalities test: a neuropsychologic test of learning and other cerebral disorders. In J. Helmuth (Ed.), Learning disorders (pp. 83-91). Seattle: Special Child Publications] is a substitution task that is the inverse of the Digit Symbol Test [Wechsler, D. (1955). Manual for the Wechsler Adult Intelligence Scale (WAIS). New York: The Psychological Corporation]. The familiar task of filling numbers in boxes, and the availability of an oral administration, make this a popular screening instrument for brain impairment. Normative data were previously reported for a variety of clinical groups, but complete information on non-clinical samples across age, education, gender, and socioeconomic status is limited. The present study examines the performance of a community-dwelling control sample across age, education, gender, and income groupings. In a multivariate model, these four variables did not impact test performance. These results support the utilization of the SDMT as a robust screening test for adult neuropsychological impairment.
KW - Cognitive ability
KW - Neuropsychological assessment
KW - Normative sample
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U2 - 10.1016/j.acn.2005.07.003
DO - 10.1016/j.acn.2005.07.003
M3 - Article
C2 - 16139470
AN - SCOPUS:29144511199
SN - 0887-6177
VL - 21
SP - 23
EP - 28
JO - Archives of Clinical Neuropsychology
JF - Archives of Clinical Neuropsychology
IS - 1
ER -